Noise and Sound Distortion with Wifi Traffic

essenbe said:

The official Qualcom Web site is QUALCOMM / ATHEROS drivers for Microsoft Windows (Atheros的驅動程�)

Yes I know but I did not find the official website Qualcomm this version 10.0.0.336 that solved my problems only found on other sites on google has other websites with this version.

I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".

tsaylor said:

I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".

Tsaylor, I'm using Bitdefender, and turning off "block port scans" seems to be working!! (Don't know how safe it is...)

Also see this thread: Sound crackling, clicking etc. when playing sounds - Page 2 - Windows 10 Forums

tsaylor said:

Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".

Thanks tsaylor!!! This fully solved the issue for me. It seems that BitDefender doesn't work well with routers that have HW firewall stopping the port scans. After a few hours BD ends up with huge amount of open connections (in state FIN_WAIT_2) which slow the PC to complete standstill whenever any network activity is happening. And none of this is of course visible in the process list...

also see this one from BitDefender forum: Network Traffic Causes Bitdefender To Use Excessive Cpu - GENERAL - Bitdefender Forum

An update from BitDefender:

Thank you for your response. We apologize for not getting back to you sooner.



The issue has been acknowledged by our developers and is currently being worked on for a fix. The fix will be done by means of automatic update and won't require any additional action from your part.

In the meantime, please keep 'Block Port Scans in the network' off under Modules > Firewall.

We will let you know about the fix as soon as we launch it. Thank you for your support and patience.

I know this is an old thread but a new testimony can always help someone, even if it is to tell the person to stop looking for.

OK, my testimony is that I have experienced this very same problem (pops, crackles, distortion and lag in sound) with network traffic since I moved from XP to Windows 7. With XP sound was perfect, and with W7 it became a nightmare. Since I upgraded I never managed to enjoy music on my system anymore when I am downloading things.

I have tried whatever you can imagine: update Windows, update drivers, install a new sound card, disable AV and FW, etc. Nothing seems to make any positive effect, unless stop network activity and so the problem cease immediately. In my case it happens even with a relatively low traffic (smaller than 3Mbits) and recently I figured that it doesn't happen only with wi-fi, but with ANY network traffic. I realized it by disabling my wi-fi and connecting the computer directly to the router through a cable. Problem persists.

Anyway, from times to times I have the hope that someone may have found a solution to this problem and have a peek around (that's how I found this thread). Seems that will remain unsolved though since people using W10 still complains about.



The only "solution" I found at this time is to assemble a totally separate system based on a Raspberry Pi board running Linux exclusively for playing tunes. That's a shame.

I have fixed my sound distortion by setting at Advanced tab of the wifi device in device manager the setting "802.11n mode" to Disabled.

wifi card: intel centrino advanced-n 6200 agn